When I heard that peanut butter had made an appearance in our cereal here in the UK I went a bit giddy. Like the Rocky Peanut Butter Bars the ever so fabulous Charlotte also tweeted me about the new Kellogg’s Crunchy Nut Peanut Butter Clusters. Again like said Rocky bars I searched the shelves at far too many supermarkets but finally these clusters are in my hands!  This very snazzy looking box is going to cost you £2.79, not too shabby for cereal when in theory it has 11 servings in, however whether most people stick to the serving suggestions is another matter. It…